"Crosshair" redirects here. For other uses, see Crosshair (disambiguation).
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Reticle" – news · newspapers · books · scholar · JSTOR(February 2009) (Learn how and when to remove this message)
Look up reticle in Wiktionary, the free dictionary.
Aim markings in optical devices, e.g. crosshairs
A comparison of different reticles used in telescopic sights. The lower right represents a reticle found in the PSO-1 scope of a Russian SVD designated marksman rifle.Reticle of Bell & Howell Pocket ComparatorReticle accessory (PD-8) used in sniper rifles
A reticle, or reticule[1][2] also known as a graticule, is a pattern of fine lines or markings built into the eyepiece of an optical device such as a telescopic sight, spotting scope, theodolite, optical microscope or the screen of an oscilloscope, to provide measurement references during visual inspections. Today, engraved lines or embedded fibers may be replaced by a digital image superimposed on a screen or eyepiece. Both terms may be used to describe any set of patterns used for aiding visual measurements and calibrations, but in modern use reticle is most commonly used for weapon sights, while graticule is more widely used for non-weapon measuring instruments such as oscilloscope display, astronomic telescopes, microscopes and slides, surveying instruments and other similar devices.
There are many variations of reticle pattern; this article concerns itself mainly with the most rudimentary reticle: the crosshair. Crosshairs are typically represented as a pair of perpendicularly intersecting lines in the shape of a cross, "+", though many variations of additional features exist including dots, posts, concentric circles/horseshoes, chevrons, graduated markings, or a combination of above. Most commonly associated with telescopic sights for aiming firearms, crosshairs are also common in optical instruments used for astronomy and surveying, and are also popular in graphical user interfaces as a precision pointer. The reticle is said to have been invented by Robert Hooke, and dates to the 17th century.[3] Another candidate as inventor is the amateur astronomer William Gascoigne, who predated Hooke.[4]
^A Christopher Gorse, David Johnston, Martin Pritchard, Dictionary of Construction, Surveying and Civil Engineering (2 ed.), Oxford University Press, 2020 – reticule
^dictionary.com – reticule
^
McIntyre, Thomas (2007). The Field & Stream Hunting Optics Handbook. Globe Pequot. p. 118.
^Sellers, David. "Serendipity and a Spider William Gascoigne (c.1612-44) and the Invention of the Telescope Micrometer". magavelda. Retrieved 4 November 2019.
Look up reticle in Wiktionary, the free dictionary. A reticle, or reticule also known as a graticule, is a pattern of fine lines or markings built into...
telescope. It is equipped with some form of a referencing pattern – known as a reticle – mounted in a focally appropriate position in its optical system to provide...
silicon). In semiconductor manufacturing, a mask is sometimes called a reticle. In photolithography, several masks are used in turn, each one reproducing...
25× to 6×. ACOG reticles are illuminated at night by an internal tritium phosphor. Some versions have an additional daytime reticle illumination via...
curved glass reflector that images the reticle while the viewer looks through the reflector. Since the reticle is at infinity it stays in alignment with...
side length to adjacent side length (tangent) is constant. By using a reticle with marks of a known angular spacing, the principle of similar triangles...
create problems when the reticle is not coincident with the focal plane of the target image. This is because when the reticle and the target are not at...
magnification, and a 28mm diameter objective lens. A tritium illuminated reticle provides for normal and low-light conditions sighting. It can be mounted...
This type of reticle is sometimes referred to as the "German Post". This obscures the target at long range and the foreground. The reticle is tritium-illuminated...
the focus of collimating optics, which generates a dot-style illuminated reticle that stays in alignment with the firearm the sight is attached to, regardless...
with both mrad adjustment and a reticle with mrad markings (called an "mrad/mrad scope"), the shooter can use the reticle as a ruler to count the number...
window and see a holographic reticle image superimposed at a distance on the field of view. The hologram of the reticle is built into the window and is...
the brightness of the reticle allowing for the reticle to be visible without outshining the target.[citation needed] The reticle has markings that match...
company's products and services are intended for all phases of wafer, reticle, integrated circuit (IC) and packaging production, from research and development...
This causes the image of the target to be spun around the reticle, instead of the reticle itself spinning. Consider an example system where the seeker's...
spotting scopes. The reticle is etched onto one of the internal reflective surface of the prism, making it easy to illuminate the reticle from the back of...
latter is estimated by the pilot by moving a dial or pointer so that a reticle in the sight matches the wingspan of the target. Post-war models added...
with the PSO-1 scope with illuminated reticle, but other Russian scopes can also be mounted. The PSO-1 reticle is somewhat unique in the world of sniper...
MC-10-80 has an anodized aluminium housing, and has a similar black reticle. The night reticle for both the HC-14-62 and the MC-10-80 consists of an open T that...
holographic weapon sight does not use a reflected reticle system. Instead, a representative reticle is recorded in three-dimensional space onto holographic...
Examples of the latter are a seal ring and filler structures. Producing a reticle layout with test patterns and alignment marks. Layout-to-mask preparation...
standard version in that ballistic compensation is in the reticle rather than in the mount. Reticle illumination is by a battery-powered LED with eleven brightness...
Global Information
